237 237 SM Resolusi 237 Dewan Keamanan Perserikatan Bangsa-Bangsa Isotop uranium Isotop neptunium Isotop plutonium Isotop kalifornium Isotop amerisium Isotop protaktinium Isotop torium
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237 237 SM Resolusi 237 Dewan Keamanan Perserikatan Bangsa-Bangsa Isotop uranium Isotop neptunium Isotop plutonium Isotop kalifornium Isotop amerisium Isotop protaktinium Isotop torium